To my credit - or at least an argument against my "chicken-ness" - I found an alternative solution. McHenry makes a plastic coupler that has a much-more-reliable closing mechanism: metal spring rather than a sliver of plastic. There's even a little letter "E" pressed into the underside of the shank that you can use to start your hole (with the point of a safety pin, in my case) and then it's a snap (not literally, thankfully) to drill out the hole with a #72 bit.
There're only two problems:
- The couplers are oversized - but BillS told me at my last operating session on Friday (report coming soon) that they make a "scale" size coupler. So this won't be a problem for long.
- The coupler shank is much thinner than the draft gear box, resulting in some drooping...
|Droopy McHenry Coupler|
|Teeny Tiny Coupler Shim|
It actually took me much longer to type that out than it did to do. The result was certainly worth it: